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#include "ast_jpeg_decoder.hpp"
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#ifdef BUILD_CIMG
#define cimg_display 0
#include <CImg.h>
#endif
using namespace testing;
MATCHER_P2(IsBetween, a, b,
std::string(negation ? "isn't" : "is") + " between " +
PrintToString(a) + " and " + PrintToString(b))
{
return a <= arg && arg <= b;
};
TEST(AstJpegDecoder, AllBlue)
{
ast_video::RawVideoBuffer out;
// This binary blog was created on the aspeed hardware using a blue screen
// consisting of the color 0x8EFFFA in a web browser window
FILE* fp = fopen("test_resources/aspeedbluescreen.bin", "rb");
EXPECT_NE(fp, nullptr);
size_t bufferlen =
fread(out.buffer.data(), sizeof(decltype(out.buffer)::value_type),
out.buffer.size(), fp);
fclose(fp);
ASSERT_GT(bufferlen, 0);
out.ySelector = 0;
out.uvSelector = 0;
out.mode = ast_video::YuvMode::YUV444;
out.width = 800;
out.height = 600;
ast_video::AstJpegDecoder d;
d.decode(out.buffer, out.width, out.height, out.mode, out.ySelector,
out.uvSelector);
int tolerance = 16;
// All pixels should be blue (0x8EFFFA) to within a tolerance (due to jpeg
// compression artifacts and quanitization)
for (int i = 0; i < out.width * out.height; i++)
{
ast_video::RGB& pixel = d.outBuffer[i];
EXPECT_GT(pixel.r, 0x8E - tolerance);
EXPECT_LT(pixel.r, 0x8E + tolerance);
EXPECT_GT(pixel.g, 0xFF - tolerance);
EXPECT_LT(pixel.g, 0xFF + tolerance);
EXPECT_GT(pixel.b, 0xF1 - tolerance);
EXPECT_LT(pixel.b, 0xF1 + tolerance);
}
}
TEST(AstJpegDecoder, AllBlack)
{
ast_video::RawVideoBuffer out;
// This binary blog was created on the aspeed hardware using a black screen
FILE* fp = fopen("test_resources/aspeedblackscreen.bin", "rb");
EXPECT_NE(fp, nullptr);
size_t bufferlen = fread(out.buffer.data(), sizeof(char),
out.buffer.size() * sizeof(long), fp);
fclose(fp);
ASSERT_GT(bufferlen, 0);
out.ySelector = 0;
out.uvSelector = 0;
out.mode = ast_video::YuvMode::YUV444;
out.width = 800;
out.height = 600;
ast_video::AstJpegDecoder d;
d.decode(out.buffer, out.width, out.height, out.mode, out.ySelector,
out.uvSelector);
// All pixels should be blue (0x8EFFFA) to within a tolerance (due to jpeg
// compression artifacts and quanitization)
for (int x = 0; x < out.width; x++)
{
for (int y = 0; y < out.height; y++)
{
ast_video::RGB pixel = d.outBuffer[x + (y * out.width)];
ASSERT_EQ(pixel.r, 0x00) << "X:" << x << " Y: " << y;
ASSERT_EQ(pixel.g, 0x00) << "X:" << x << " Y: " << y;
ASSERT_EQ(pixel.b, 0x00) << "X:" << x << " Y: " << y;
}
}
}
TEST(AstJpegDecoder, TestColors)
{
ast_video::RawVideoBuffer out;
// This binary blog was created on the aspeed hardware using a blue screen
// consisting of the color 0x8EFFFA in a web browser window
FILE* fp = fopen("test_resources/ubuntu_444_800x600_0chrom_0lum.bin", "rb");
EXPECT_NE(fp, nullptr);
size_t bufferlen = fread(out.buffer.data(), sizeof(char),
out.buffer.size() * sizeof(long), fp);
fclose(fp);
ASSERT_GT(bufferlen, 0);
out.ySelector = 0;
out.uvSelector = 0;
out.mode = ast_video::YuvMode::YUV444;
out.width = 800;
out.height = 600;
ast_video::AstJpegDecoder d;
d.decode(out.buffer, out.width, out.height, out.mode, out.ySelector,
out.uvSelector);
int tolerance = 16;
/*
for (int i = 0; i < out.width * out.height; i++) {
ast_video::RGB &pixel = d.outBuffer[i];
EXPECT_GT(pixel.r, 0x8E - tolerance);
EXPECT_LT(pixel.r, 0x8E + tolerance);
EXPECT_GT(pixel.g, 0xFF - tolerance);
EXPECT_LT(pixel.g, 0xFF + tolerance);
EXPECT_GT(pixel.b, 0xF1 - tolerance);
EXPECT_LT(pixel.b, 0xF1 + tolerance);
}
*/
}
// Tests the buffers around the screen aren't written to
TEST(AstJpegDecoder, BufferLimits)
{
ast_video::RawVideoBuffer out;
// This binary blog was created on the aspeed hardware using a black screen
FILE* fp = fopen("test_resources/aspeedblackscreen.bin", "rb");
EXPECT_NE(fp, nullptr);
size_t bufferlen = fread(out.buffer.data(), sizeof(char),
out.buffer.size() * sizeof(long), fp);
fclose(fp);
ASSERT_GT(bufferlen, 0);
out.ySelector = 0;
out.uvSelector = 0;
out.mode = ast_video::YuvMode::YUV444;
out.width = 800;
out.height = 600;
ast_video::AstJpegDecoder d;
d.decode(out.buffer, out.width, out.height, out.mode, out.ySelector,
out.uvSelector);
// reserved pixel should be default value
for (auto& pixel : d.outBuffer)
{
EXPECT_EQ(pixel.reserved, 0xAA);
}
// All pixels beyond the buffer should be zero
for (int i = out.width * out.height; i < d.outBuffer.size(); i++)
{
EXPECT_EQ(d.outBuffer[i].r, 0x00) << "index:" << i;
EXPECT_EQ(d.outBuffer[i].b, 0x00) << "index:" << i;
EXPECT_EQ(d.outBuffer[i].g, 0x00) << "index:" << i;
}
}
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